kingst-la2016: add more device types and their EEPROM magic numbers

kingst-la2016: add more device types and their EEPROM magic numbers

Extend the EEPROM content check which identifies device types. Inspect
the full set of four bytes before falling back to weaker checks of two
bytes per copy. Prefer the longest run of consistent data that is found
first. Some devices are said to require inspection of byte[2] in
addition to byte[0], to tell different models apart which share the
same byte[0] value.

This was exclusively tested on LA2016 hardware. The details were derived
from the https://github.com/AlexUg/sigrok implementation (which claims
support for LA1010, the LA50xx details may be untested there as well).
The model database also includes items which are not supported by this
driver implementation, to provide the maximum amount of information to
users which became available during scan.